I'm really sitting on the fence about this item. I have a SVS Pb-12plus in a very small room, under 1500cubic.
I just don't know, I wouldn't want to buy it, run it, and then be like what the hell, I can't hear a difference. Or even if I did hear a small difference is it worth the dough? $699 US is $870 for a Canadian like me plus shipping, taxes and duty. I'm not hurting for money(knock on wood) but at the same time for that amount of cash I would want a slap in the face difference.
I think it's very possible that SVS could be talking this unit up beyond expectations. From everything that I've read about it I most certainly expect that jaw dropping difference the first time I run it. Will I get that? I don't know.
I'll have to email sonicboom here in Ontario to get their price, but in the meantime I think I'll stay here on the fence.